三角形ABC中,角ABC>角ACB,AD垂直BC,垂足为D,P为AD上的任意一点,连接PB,PC,求证:AB+PC>AC+PB此题应该为初二数学题,感觉应该是代数几何的综合题,苦思两个小时还是不知何解,
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![三角形ABC中,角ABC>角ACB,AD垂直BC,垂足为D,P为AD上的任意一点,连接PB,PC,求证:AB+PC>AC+PB此题应该为初二数学题,感觉应该是代数几何的综合题,苦思两个小时还是不知何解,](/uploads/image/z/7116361-25-1.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E8%A7%92ABC%3E%E8%A7%92ACB%2CAD%E5%9E%82%E7%9B%B4BC%2C%E5%9E%82%E8%B6%B3%E4%B8%BAD%2CP%E4%B8%BAAD%E4%B8%8A%E7%9A%84%E4%BB%BB%E6%84%8F%E4%B8%80%E7%82%B9%2C%E8%BF%9E%E6%8E%A5PB%2CPC%2C%E6%B1%82%E8%AF%81%EF%BC%9AAB%2BPC%3EAC%2BPB%E6%AD%A4%E9%A2%98%E5%BA%94%E8%AF%A5%E4%B8%BA%E5%88%9D%E4%BA%8C%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E6%84%9F%E8%A7%89%E5%BA%94%E8%AF%A5%E6%98%AF%E4%BB%A3%E6%95%B0%E5%87%A0%E4%BD%95%E7%9A%84%E7%BB%BC%E5%90%88%E9%A2%98%2C%E8%8B%A6%E6%80%9D%E4%B8%A4%E4%B8%AA%E5%B0%8F%E6%97%B6%E8%BF%98%E6%98%AF%E4%B8%8D%E7%9F%A5%E4%BD%95%E8%A7%A3%2C)
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